diff --git a/docs/en/04-supported-codebases/mmdet3d.md b/docs/en/04-supported-codebases/mmdet3d.md
index d993875dc..74fa681b6 100644
--- a/docs/en/04-supported-codebases/mmdet3d.md
+++ b/docs/en/04-supported-codebases/mmdet3d.md
@@ -9,10 +9,12 @@ Please refer to [getting_started.md](https://github.com/open-mmlab/mmdetection3d
 ## Example
 
 ```bash
+export MODEL_PATH=https://download.openmmlab.com/mmdetection3d/v1.0.0_models/pointpillars/hv_pointpillars_secfpn_6x8_160e_kitti-3d-car/hv_pointpillars_secfpn_6x8_160e_kitti-3d-car_20220331_134606-d42d15ed.pth
+
 python tools/deploy.py \
        configs/mmdet3d/voxel-detection/voxel-detection_tensorrt_dynamic.py \
        ${MMDET3D_DIR}/configs/pointpillars/hv_pointpillars_secfpn_6x8_160e_kitti-3d-3class.py \
-       checkpoints/point_pillars.pth \
+       ${MODEL_PATH} \
        ${MMDET3D_DIR}/demo/data/kitti/kitti_000008.bin \
         --work-dir \
         work_dir \
diff --git a/docs/zh_cn/04-supported-codebases/mmdet3d.md b/docs/zh_cn/04-supported-codebases/mmdet3d.md
index 4ced6e16a..345fa44c1 100644
--- a/docs/zh_cn/04-supported-codebases/mmdet3d.md
+++ b/docs/zh_cn/04-supported-codebases/mmdet3d.md
@@ -9,10 +9,12 @@ MMDetection3d是用于通用 3D 物体检测平台。属于 [OpenMMLab](https://
 ## 示例
 
 ```bash
+export MODEL_PATH=https://download.openmmlab.com/mmdetection3d/v1.0.0_models/pointpillars/hv_pointpillars_secfpn_6x8_160e_kitti-3d-car/hv_pointpillars_secfpn_6x8_160e_kitti-3d-car_20220331_134606-d42d15ed.pth
+
 python tools/deploy.py \
        configs/mmdet3d/voxel-detection/voxel-detection_tensorrt_dynamic.py \
        ${MMDET3D_DIR}/configs/pointpillars/hv_pointpillars_secfpn_6x8_160e_kitti-3d-3class.py \
-       checkpoints/point_pillars.pth \
+       ${MODEL_PATH} \
        ${MMDET3D_DIR}/demo/data/kitti/kitti_000008.bin \
         --work-dir \
         work_dir \